CN204025368U - Internal and external cycle labyrinth sealed roller bearing units - Google Patents
Internal and external cycle labyrinth sealed roller bearing units Download PDFInfo
- Publication number
- CN204025368U CN204025368U CN201420339276.8U CN201420339276U CN204025368U CN 204025368 U CN204025368 U CN 204025368U CN 201420339276 U CN201420339276 U CN 201420339276U CN 204025368 U CN204025368 U CN 204025368U
- Authority
- CN
- China
- Prior art keywords
- seal
- bearing
- steel skeleton
- lip
- circle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a kind of Internal and external cycle labyrinth sealed roller bearing units, comprise the seal ring of bearing inner race, bearing outer ring and bearing both sides, it is characterized in that: described seal ring is one group, comprise the inner seal circle and outer side seal circle with steel skeleton; First steel skeleton of described inner seal circle is bonded with the first seal, and the first seal is provided with the first sealing lip contacted with bearing inner race; Described outer side seal circle second steel skeleton is bonded with the second seal, second seal is provided with the second sealing lip contacted with bearing outer ring, axial seal lip on second seal towards the first inner side end of the first steel skeleton extend and lip and the first inner side end inconsistent, the outer circumferential face of axial seal lip is near the assembly department of described first steel skeleton.The utility model has multi-sealing structure, can simultaneously by the inner peripheral surface effective sealing of the outer circumferential face of bearing inner race and bearing outer ring, and good sealing effect, improves the working life of bearing.
Description
Technical field
The utility model relates to technical field of bearings, particularly relates to a kind of Internal and external cycle labyrinth sealed roller bearing units.
Background technique
The Environmental Conditions of roller bearing units is relatively more severe, and be generally used for mining machinery, agricultural machinery etc., roller bearing units is the one of deep groove ball bearing, has bearing inner race, bearing outer ring, and the rolling element between bearing inner race and bearing outer ring.At present, traditional roller bearing units is mostly the combined sealing configuration of seal ring and back-up ring, seal ring is fixed on bearing outer ring, seal ring has the lip contacting with bearing inner race and seal, back-up ring is in the outside of seal ring and be fixed on bearing inner race, the outer shroud edge of back-up ring is near bearing outer ring inner peripheral surface, and back-up ring is used for blocks dust.Although this traditional roller bearing units can play the effect of double seal, have cavity between seal ring and back-up ring, back-up ring can not be completely closed by the end of outer ring, and entering of dust and muddy water, easily causes seal ring to lose efficacy.
For improving this kind of situation, Chinese utility model patent 201751621U discloses a kind of kiss-coating back-up ring and bearing seal structure, its kiss-coating back-up ring arranged can form enclosed construction with the seal ring of inner side, dust not easily enters, but the seal on back-up ring is pressed on the conical surface of seal ring skeleton, dust outside seal overstocks on seal, radial component is large, cause the contact of seal and the seal ring skeleton conical surface large, friction torque can be increased, run under this kind of environment, sealing configuration easily generates heat and lost efficacy, and affects bearing working life.
Model utility content
For the above-mentioned problems in the prior art, technical problem to be solved in the utility model is to provide a kind of Internal and external cycle labyrinth sealed roller bearing units, it has multi-sealing structure, can simultaneously by the inner peripheral surface effective sealing of the outer circumferential face of bearing inner race and bearing outer ring, and do not exist because plaster overstocks the problem causing friction torque to increase on sealing lip, improve the working life of bearing.
The technical solution of the utility model is as follows: a kind of Internal and external cycle labyrinth sealed roller bearing units, the rolling element comprising bearing inner race, bearing outer ring and arrange between the two, seal ring is respectively equipped with between the inside and outside circle of the bearing of rolling element both sides, described seal ring is one group, comprise the inner seal circle and outer side seal circle with steel skeleton, the steel skeleton of two seal rings is the toroidal ring structure with the inner side end, circular cone and the end face outside that connect successively; First steel skeleton of described inner seal circle is fastened on bearing outer ring by assembly department, and the first circular cone of the first steel skeleton is bonded with the first seal, the first sealing lip that the first seal has at least two to contact with bearing inner race; Second steel skeleton of described outer side seal circle is fastened on bearing inner race, second circular cone of described second steel skeleton is bonded with the second seal, the second sealing lip that second seal has at least two to contact with bearing outer ring, second seal is also provided with axial seal lip, axial seal lip towards the first inner side end of the first steel skeleton extend and lip and the first inner side end inconsistent, the outer circumferential face of axial seal lip is near the assembly department of described first steel skeleton.
Further, the assembly department of described first steel skeleton is the bending flange formed at described first inner side end outward edge, and after inner seal circle presses fit into described bearing outer ring, bending flange is stuck in the annular groove of bearing outer ring with being deformed into U-shaped.
Further, after described inner seal circle is installed, the end of described U-shaped bending flange, near the outer circumferential face of described axial seal lip, between the outer circumferential face of axial seal lip and bending flange, and forms labyrinth sealing between axial seal lip lip and the first inner side end.
Further, the first inner side end of the first seal of described inner seal circle and the first steel skeleton, the first circular cone and the first end face outside are bonding.
Further, the first seal of described inner seal circle has three sealing lips contacted with bearing inner race.
Further, the outward edge of the second end face outside of the second steel skeleton of described outer side seal circle is near the inner peripheral surface of described bearing outer ring, and the outward edge of the second inner side end is provided with the bending flange fastening with bearing inner race.
Further, lubricating grease is filled with between described inner seal circle and outer side seal circle.
The utility model arranges the one group of many lip seals oppositely installed circle in the both sides of rolling element, seal ring has the radial lip that two or more contacts with bearing inner race outer surface or bearing outer ring inner peripheral surface, make bearing inner race and all form contact-type motive sealing between bearing outer ring and seal ring, prevent dust and muddy water from entering, and outer side seal circle is also provided with an axial seal lip, axial seal lip perpendicular to inner seal circle steel skeleton end face contact with inner side end and seal, do not produce radial component, and the assembly department of the first steel skeleton and the outer circumferential face of axial seal lip only there is small―gap suture close, together labyrinth sealing is formed with other seal lip of its both sides, even if a small amount of dust enters between the second sealing lip and inner seal circle assembly department by the second sealing lip of outer side seal circle radial direction, also cannot by the gap formed between the outer circumferential face of axial seal lip and U-shaped flange, and axial seal between axial seal lip and the first steel skeleton and enter inner seal circle outer end, repack with grease between interior outer side seal circle, form sealer blocks dust to enter, sealing effect is better.And the outward edge of the second end face outside of outer side seal circle steel skeleton is near the inner peripheral surface of bearing outer ring, second end face outside forms guard ring, first barrier is formed in outermost end, closely spacedly do not contact sealing with being formed between bearing outer ring, this Internal and external cycle is mazy multi-sealed, effectively can stop that dust and muddy water enter Bearing inner, extend the working life of bearing, and can not resemble some existing bearing and on sealing lip, cause extra friction torque because plaster overstocks, avoid losing efficacy because of overheated.
The beneficial effects of the utility model are: it has multi-sealing structure, can simultaneously by the inner peripheral surface effective sealing of the outer circumferential face of bearing inner race and bearing outer ring, good sealing effect, and do not exist because plaster overstocks the problem causing friction torque to increase on sealing lip, improve the working life of bearing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the close-up schematic view of Fig. 1.
Fig. 3 is the structural representation before the utility model inner seal circle is installed.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in Figure 1, a kind of Internal and external cycle labyrinth sealed roller bearing units, comprise bearing inner race 1 and bearing outer ring 2, rolling element 3 is provided with between described bearing inner race 1 and bearing outer ring 2, rolling element 3 is spherical, the both sides end face of bearing inner race 1 stretches out in bearing outer ring 2, and the external diameter surface of described bearing outer ring 2 is sphere.In following statement, be inner side near the direction of rolling element 3, the direction away from rolling element 3 near bearing two ends is outside.
As depicted in figs. 1 and 2, seal ring is respectively equipped with between the bearing inner race 1 and bearing outer ring 2 of rolling element 3 both sides, described seal ring is one group, comprise inner seal circle 4 and outer side seal circle 5, inner seal circle 4 is near rolling element 3, be filled with lubricating grease between inner seal circle 4 and outer side seal circle 5, lubricating grease forms sealer blocks dust and enters, and sealing effect is better.Inner seal circle 4 and outer side seal circle 5 are provided with steel skeleton, and steel skeleton is the toroidal ring structure with bending, and toroidal ring structure all has inner side end, end face outside and connects the circular cone of end face described in two.First steel skeleton 41 of described inner seal circle 4 is fastened on bearing outer ring 2 by assembly department, first circular cone 412 of the first steel skeleton 41 is bonded with the first seal 42, the first sealing lip 421 that first seal 42 has at least two to contact with bearing inner race 1, the preferably lip of three the first sealing lips, 421, three the first sealing lips 421 and bearing inner race 1 motive sealing in the present embodiment.In order to bond firmly, ensure not come off, first seal 42 of inner seal circle 4 and the first inner side end 411, first circular cone 412 of the first steel skeleton 41 and the first end face outside 413 bonding, the inner of first seal 42 is provided with flange, first inner side end 411 of flange and the first steel skeleton 41 is bonding, the first seal 42 outer ring conical surface and exterior edge face be then bonded in the first circular cone 412 and the first end face outside 413 of the first steel skeleton 41 respectively.
Refer to Fig. 2, second steel skeleton 51 of described outer side seal circle 5 is fastened on bearing inner race 1, the outward edge of the second inner side end 511 of the second steel skeleton 51 is provided with the bending flange fastening with bearing inner race 1, and the outward edge of the second end face outside 513 of the second steel skeleton 51 is near the inner peripheral surface of described bearing outer ring 2, second end face outside 513 forms guard ring, form first barrier in outermost end, closely spacedly do not contact sealing with being formed between bearing outer ring 2.Second circular cone 512 of described second steel skeleton 51 is bonded with the second seal 52, the second sealing lip 521 that second seal 52 has at least two to contact with bearing outer ring 2, the preferably lip of two the second sealing lips, 521, two the second sealing lips 521 and bearing outer ring 2 motive sealing in the present embodiment.
As shown in Figure 2, second seal 52 is also provided with axial seal lip 522, axial seal lip 522 to extend and lip and the first inner side end 411 are conflicted with intersecting vertically towards the first inner side end 411 of the first steel skeleton 41, and the outer circumferential face of axial seal lip 522 is near the assembly department of described first steel skeleton 41.See Fig. 3, the assembly department of the first steel skeleton 41 is the bending flange 414 formed at described first inner side end 411 outward edge, as shown in Figure 2, after inner seal circle 4 presses fit into described bearing outer ring 2, bending flange 414 is stuck in the annular groove of bearing outer ring 2 with being deformed into U-shaped, after described inner seal circle 4 is installed, bending flange 414 end of U-shaped is near the outer circumferential face of described axial seal lip 522, between the outer circumferential face of axial seal lip 522 and bending flange 414, and other seal lip of its both sides forms labyrinth sealing, even if a small amount of dust enters between sealing lip and inner seal circle 4 assembly department by the second sealing lip 521 of outer side seal circle 5, also cannot by the gap formed between the outer circumferential face of axial seal lip 522 and U-shaped bending flange 414, and axial seal between axial seal lip 522 and the first steel skeleton 41 and enter inner seal circle 4 outer end.
The utility model arranges the one group of many lip seals oppositely installed circle in the both sides of rolling element 3, seal ring has the radial lip that two or more contacts with bearing inner race 1 outer surface or bearing outer ring 2 inner peripheral surface, make bearing inner race 1 and all form contact-type motive sealing between bearing outer ring 2 and seal ring, prevent dust and muddy water from entering, and outer side seal circle 5 is also provided with an axial seal lip 522, axial seal lip 522 perpendicular to inner seal circle 4 steel skeleton end face contact with inner side end and seal, do not produce radial component, contact is little, friction torque is little, by the labyrinth sealing formed between the assembly department of axial seal lip 522 and the first steel skeleton 41 and inner side end, block the path that the dust entered between two seal rings enters inner seal circle 4, this Internal and external cycle is mazy multi-sealed, effectively can stop that dust and muddy water enter Bearing inner, extend the working life of bearing, and can not resemble some existing bearing and on sealing lip, cause extra friction torque because plaster overstocks, avoid losing efficacy because of overheated, severe especially for Environmental Conditions, the environmental conditions that dust is large, especially applicable.
These are only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. an Internal and external cycle labyrinth sealed roller bearing units, the rolling element comprising bearing inner race, bearing outer ring and arrange between the two, seal ring is respectively equipped with between the inside and outside circle of the bearing of rolling element both sides, it is characterized in that: described seal ring is one group, comprise the inner seal circle and outer side seal circle with steel skeleton, the steel skeleton of two seal rings is the toroidal ring structure with the inner side end, circular cone and the end face outside that connect successively; First steel skeleton of described inner seal circle is fastened on bearing outer ring by assembly department, and the first circular cone of the first steel skeleton is bonded with the first seal, the first sealing lip that the first seal has at least two to contact with bearing inner race; Second steel skeleton of described outer side seal circle is fastened on bearing inner race, second circular cone of described second steel skeleton is bonded with the second seal, the second sealing lip that second seal has at least two to contact with bearing outer ring, second seal is also provided with axial seal lip, axial seal lip towards the first inner side end of the first steel skeleton extend and lip and the first inner side end inconsistent, the outer circumferential face of axial seal lip is near the assembly department of described first steel skeleton.
2. Internal and external cycle labyrinth sealed roller bearing units according to claim 1, it is characterized in that: the assembly department of described first steel skeleton is the bending flange formed at described first inner side end outward edge, after inner seal circle presses fit into described bearing outer ring, bending flange is stuck in the annular groove of bearing outer ring with being deformed into U-shaped.
3. Internal and external cycle labyrinth sealed roller bearing units according to claim 2, it is characterized in that: after described inner seal circle is installed, the end of described U-shaped bending flange is near the outer circumferential face of described axial seal lip, between the outer circumferential face of axial seal lip and bending flange, and form labyrinth sealing between axial seal lip lip and the first inner side end.
4. Internal and external cycle labyrinth sealed roller bearing units according to claim 1, is characterized in that: the first seal of described inner seal circle and the first inner side end of the first steel skeleton, the first circular cone and the first end face outside bonding.
5. Internal and external cycle labyrinth sealed roller bearing units according to claim 4, is characterized in that: the first seal of described inner seal circle has three sealing lips contacted with bearing inner race.
6. Internal and external cycle labyrinth sealed roller bearing units according to claim 1, it is characterized in that: the outward edge of the second end face outside of the second steel skeleton of described outer side seal circle is near the inner peripheral surface of described bearing outer ring, and the outward edge of the second inner side end is provided with the bending flange fastening with bearing inner race.
7. Internal and external cycle labyrinth sealed roller bearing units according to claim 1, is characterized in that: be filled with lubricating grease between described inner seal circle and outer side seal circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339276.8U CN204025368U (en) | 2014-06-23 | 2014-06-23 | Internal and external cycle labyrinth sealed roller bearing units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339276.8U CN204025368U (en) | 2014-06-23 | 2014-06-23 | Internal and external cycle labyrinth sealed roller bearing units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025368U true CN204025368U (en) | 2014-12-17 |
Family
ID=52065238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420339276.8U Expired - Fee Related CN204025368U (en) | 2014-06-23 | 2014-06-23 | Internal and external cycle labyrinth sealed roller bearing units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160325A (en) * | 2021-10-28 | 2022-03-11 | 山东大学 | Ejector adaptive to variable working condition adjustment |
-
2014
- 2014-06-23 CN CN201420339276.8U patent/CN204025368U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160325A (en) * | 2021-10-28 | 2022-03-11 | 山东大学 | Ejector adaptive to variable working condition adjustment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204025321U (en) | Special multi-sealed roller bearing units | |
| CN204239484U (en) | A kind of hub-bearing unit | |
| CN204403151U (en) | Lift machine is used light and thin type bearing | |
| CN204025368U (en) | Internal and external cycle labyrinth sealed roller bearing units | |
| CN203362845U (en) | Sealed radial spherical plain bearing | |
| CN203335646U (en) | Sealing device of motor bearing | |
| CN203395028U (en) | End surface sealing bearing | |
| CN206268448U (en) | A kind of hub exterior seal ring anti-loose structure | |
| CN204025322U (en) | With the roller bearing units of special seal structure | |
| CN204751362U (en) | Antimagnetic antistatic combined material bearing roller of corrosion resistant that excels in | |
| CN203641283U (en) | Bearing sealing ring | |
| CN202690766U (en) | Pivoting support structure | |
| CN202374096U (en) | Sealing structure for motor bearing | |
| CN203230741U (en) | Leakage-proof special bearing for automobile clutch | |
| CN202659899U (en) | Combined sealing structure for ends of rollers | |
| CN203670458U (en) | Bearing | |
| CN102797832B (en) | A kind of large-sized grinder gearwheel seal arrangement | |
| CN203051506U (en) | Three-point-contact sealing bearing | |
| CN203670490U (en) | Bearing | |
| CN103062109A (en) | Oil seal device for pump | |
| CN207111726U (en) | Baler special piston roller bearing | |
| CN204878359U (en) | Three rows of roller turntable bearings of double sealing | |
| CN201763953U (en) | End face positioning oil seal for gear shifting shaft | |
| CN205978105U (en) | Agricultural machinery wheel hub bearing sealing device for unit | |
| CN202118127U (en) | Water-proof sealed bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Outer spherical surface ball bearing with labyrinthically sealed inner and outer rings Effective date of registration: 20160630 Granted publication date: 20141217 Pledgee: Bank of China, Limited by Share Ltd, Nanan branch Pledgor: FK Bearing Group Co.,Ltd. Registration number: 2016350000055 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20180623 |